Multi-Resolution Favicon Pack
Favicon & Multi-Size ICO Generator
Convert and bundle regular images or SVG logos into compliant multi-resolution .ico files for modern browsers, Windows shortcuts, and mobile bookmark icons.
In-Browser Canvas Rasterization & Binary Assembling · Zero Server Upload
Drop image here, or click to choose
Supports PNG, JPG, WebP, SVG · 100% browser-local processing, zero server upload
Image desk
Why does your website need a multi-resolution ICO file?
A single 16x16 pixel icon becomes pixelated and blurry when rendered on Retina displays or Windows desktop shortcuts, while a single large 256px icon causes unnecessary bandwidth overhead.
The Windows .ico container allows packing multiple resolutions (16x16, 32x32, 48x48, 64x64) into one single binary file. The operating system and browser automatically select the sharpest matching layer.
ICO Container = ICONDIR Header (6B) + N × ICONDIRENTRY Directory (16B) + Encoded PNG Chunks
FAQ
Favicon & Multi-Size ICO Generator · FAQ
Is the generated favicon.ico compatible with all browsers?
Yes. It adheres strictly to the Microsoft ICO specification with embedded PNG sub-images, fully compatible with Chrome, Safari, Edge, Firefox, and Windows Explorer.
Are my uploaded logo files secure?
Completely safe. All resizing, rasterization, and binary byte stitching execute inside your browser's private memory space. No data is ever transmitted across the internet.
Which resolutions should I choose?
For general websites, 16x16 (browser tabs), 32x32 (Retina tabs & bookmarks), and 48x48 (desktop shortcuts) provide the ideal balance. For desktop apps, include 64x64 and 256x256.